Ok, I will check it out. It seems to be gamma-related - can you write your LWF / colorprofile settings? Also, is the result correct when you set Gamma to 2.2 in PV / Filter tab?
As of missing frames in animation, this seems strange as animations are mostly handled directly by C4D (most of Corona-related TR work is because of single-image rendering). Do you have some specific scene where you have problems?